Justinh4x

I seem to have issues installing it, I've tried in ACP -> System -> Plugins and installing the Supergrid_Plugin.xml but nothing seems to be happening. The installation seems to be successful, but no new options have appeared (that I know of). I can access the settings that come with that xml file but no more than that. No clue where to go and what to do.
Any help is appreciated, thanks.